[Webkit-unassigned] [Bug 7102] New: Web page not redrawn properly when going back from viewing a PDF

[bugzilla-daemon at opendarwin.org]

http://bugzilla.opendarwin.org/show_bug.cgi?id=7102

           Summary: Web page not redrawn properly when going back from
                    viewing a PDF
           Product: WebKit
           Version: 420+ (nightly)
          Platform: Macintosh
        OS/Version: Mac OS X 10.4
            Status: NEW
          Severity: normal
          Priority: P2
         Component: Layout and Rendering
        AssignedTo: webkit-unassigned at opendarwin.org
        ReportedBy: ddkilzer at kilzer.net


Summary: 

Clicking "Back" button after viewing a PDF in the browser sometimes causes the
web page to be redrawn differently.

Steps to Reproduce: 

This is easiest to see on Google search pages where a blue bar above the
"Results MM - NN of about Y,YYY,YYY for <search criteria> (D.DD seconds)" text
appears much larger than it should.

1. Search for some PDF documents in Google.

http://www.google.com/search?q=filetype:pdf+pdf&hl=en&lr=&safe=off&start=10&sa=N

2. Click on a PDF to view.  PDFs larger than 1 MB seem to work best.

3. Wait for PDF to load, then click "Back" button.

4. If the web page draws correctly, click the "Forward" button, then the "Back"
button.  Repeat as needed until it happens.

Expected Results: 

The web page should look exactly the same when going back as it looked before
clicking on the PDF.

Actual Results: 

The web page sometimes redraws incorrectly.

Regression: 

Not tested with a production release of Safari yet.


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